CVE-2024-43420 Information disclosure in Intel Atom(R) processors
An authenticated local attacker can exploit shared microarchitectural predictor state in Intel Atom processors to disclose sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-43420?
CVE-2024-43420 is a medium-severity vulnerability in Intel Atom(R) processors, published on 13 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) processors may allow an authenticated user to potentially enable information disclosure via local access.
Weakness: CWE-1423
Which versions are affected by CVE-2024-43420?
How do I fix CVE-2024-43420?
Apply the vendor's patch.
Is CVE-2024-43420 being exploited?
There is no known exploitation of CVE-2024-43420 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2024-43420, BELL-CVE-2024-43420, DEBIAN-CVE-2024-43420, GHSA-6gp3-r6r7-wq4f, UBUNTU-CVE-2024-43420.